"Pokémon Classic Universe" sounded very promising. Unfortunately, the screenshots in the thread are now broken and it doesn't seem to be available to download, so I'm left wondering what it looked like. I've always been a fan for Ken Sugimori's gen 1 art style, I would like to see how you've translated that into sprite art. Pokémen Throwback does something a little similar (only for the protagonists and the rival, not the other trainers or pokemon), but for the most part they're edits that don't really capture the art style or designs of the first generation. The mention of original music in the thread caught my interest as well.